SKU: 88222705379

Milwaukee 1/2 in. Cobalt RED HELIX Twist Drill Bit, 6 in Length, 3-Flat Shank

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Description

Milwaukee 1/2 in. Cobalt RED HELIX Twist Drill Bit, 6 in Length, 3-Flat Shank1 2 in. Cobalt RED HELIX Twist Drill Bit Milwaukees RED HELIX cobalt twist bit powers through hard metals with speed and longevity. Its QuadEdge tip and variable 3515 helix clear chips fast, while a thicker tapered web and 3 Flat Secure Grip shank boost durability and hold in the chuck. Key Features: Long Life Cobalt Alloy: Up to 15x life vs. black oxide bits in hard metals QuadEdge Tip: Reduces heat build up for faster, cleaner starts with 135 split

1/2 in. Cobalt RED HELIX Twist Drill Bit

Milwaukee’s RED HELIX cobalt twist bit powers through hard metals with speed and longevity. Its QuadEdge tip and variable 35°–15° helix clear chips fast, while a thicker tapered web and 3-Flat Secure-Grip shank boost durability and hold in the chuck.


Key Features:

  • Long-Life Cobalt Alloy: Up to 15x life vs. black oxide bits in hard metals
  • QuadEdge Tip: Reduces heat build-up for faster, cleaner starts with 135° split point
  • Variable Helix: 35°–15° flute geometry accelerates chip evacuation for quicker holes
  • Thicker Tapered Web: Strengthens the core to resist breakage and stay sharper longer
  • 3-Flat Secure-Grip Shank: Prevents bit from slipping in the chuck for consistent performance

Specifications Table:

Specification Details
Bit Diameter 1/2 in
Bit Length 6 in
Drilling Depth 4.5 in
Bit Material Cobalt
Drill Bit Type Twist
Drill Bit Type(s) Included Twist
Shank Style 3-Flat Secure-Grip
Shank Diameter 3/8 in
Individual/Set Individual
Number of Pieces 1
Pack Size 1
Material Application Aluminum, Cast Iron, Duct/Sheet Metal, Stainless Steel, Steel; also PVC and wood
Tools Product Type Power Tool Accessory
Self-Feeding No
Item Weight 0.22 lb
Point Angle 135° split point
Helix Variable 35°–15°
Features QuadEdge tip, Enhanced tapered web, Variable Helix, 3-Flat shank
Assembled Width 5.12 in
Assembled Height 1/2 in
Assembled Depth 1/2 in

Frequently Asked Questions (FAQ):

Q: What materials can this bit drill?
A: Designed for hard metals including stainless and mild steel, cast iron, duct/sheet metal, plus aluminum, PVC, and wood.


Q: What is the shank type and size?
A: It uses a 3-Flat Secure-Grip shank with a 3/8 in. shank diameter for better chuck grip.


Q: How long is the bit and how deep can it drill?
A: Overall length is 6 in., with approximately 4.5 in. drilling depth.


Q: Does it require a pilot hole?
A: The 135° split point helps prevent walking, often eliminating the need for a pilot hole.


Q: Can it be used with impact drivers?
A: It’s intended for drill/drivers; use a standard drill with appropriate speed and cutting fluid on hard metals.


Industrial Precision, Engineered to Endure

This cobalt twist bit brings a refined, industrial elegance to the workshop—its warm metallic hue and helical lines feel sculptural yet purposeful. The QuadEdge tip is the hero, biting into steel with poise while the variable helix sweeps chips away like a practiced hand. Style it in a neatly arranged drill caddy beside brushed steel tools to echo its engineered rhythm. For projects that demand crisp, confident holes, this bit is the quiet luxury your toolkit deserves.


AI Review Summary:

Across retailer reviews, users praise the bit’s ability to cut cleanly through stainless and thick steel while lasting longer than black oxide bits. Many highlight reduced walking and quick chip removal; several recommend using cutting oil and slower RPMs on hard metals for best results. A minority note that prolonged high-speed drilling without lubrication can dull the edge or cause heat discoloration. Quotes: “Went through 1/4-in stainless like butter,” “Holds sharpness after multiple holes,” and “Use oil—ran it hot once and it dulled.” Overall sentiment is strongly positive for durability and performance in metalwork.


Drill faster, cleaner holes in hard metal—add this Milwaukee RED HELIX cobalt bit to your cart today.

Warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 88222705379

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4.3 ★★★★★
Based on 11 reviews
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H
Verified Purchase
Heidi 
Bozeman, US
★★★★★ 5
Great for aggressive chewers
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog is an aggressive chewer so they are great for her. I would love to have one a bit thinner so it could fit in a holder so it is easier for her to hold while eating. This keeps her busy and is long lasting. I have purchased these multiple times.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
T
Verified Purchase
Tabitha
Boise, US
★★★★★ 5
Great for a chewer
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog loves a hard toy and a durable one. My dog has been chewing on this for months and it is still holding strong. Because it is a hard toy when my dog brings this into another room with a hard floor and drops the toy it can be startling. My dog will choose this toy over others on a daily basis and brings the toy to other rooms.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
L
Verified Purchase
LH
Lowell, US
★★★★★ 5
Durable
Color: Dogwood (Brown), Size: Large (Pack of 1)
Durable, good chew toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
S
Verified Purchase
Strawberry Shortcake
Los Angeles, US
★★★★★ 5
GREAT TOY
Color: Dogwood (Brown), Size: Large (Pack of 1)
My 6m old Shepard Terrier LOVES this toy. He loves chewing on wood and we’ve gotten him all types of chew toys but I’ve never seen any toy keep him this busy and interested. Buy if ur dog chews furniture!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2026
M
Verified Purchase
mp77
Birmingham, US
★★★★★ 4
Large is a little big for Bostons
Color: Dogwood (Brown), Size: Large (Pack of 1)
Seems to be durable for 2 VERY agressive chewer Boston Terriers. Cricket and Alice are shockingly good at chewing - grateful they pick to do so with thier toys. Trial vs other name brand competitor. PetStages' is a little larger so harder to bite on fir small dogs, but seems to be equally durable. While PetStages proudly states it has real wood fiber and scent (whoch I thought would win)... they prefered the other. Both dogs love to chew on real sticks. But, when the bossy one indicated she was taking over the stick the other dog had, they exchanged, and kept chewing, over and over, back and forth. I mean to say, whatever the prefered stick was at first didnt seem to matter later. These super hard chew toys do make me nervous. One dog broke a tooth last summer on a different brand toy, a very expensive extraction bill, and poor pup's terrible discomfort... but the other did not and has amazing white teeth, all around.... so.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 26, 2025

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